As PZ Myers points out at www.scienceblogs.com/pharyngula:
http://tinyurl.com/2j7leb
"Dr. Thompson peered inside his perfect offspring to gain insight into
its methods, but what he found inside was baffling. The plucky chip
was utilizing only thirty-seven of its one hundred logic gates, and
most of them were arranged in a curious collection of feedback loops.
Five individual logic cells were functionally disconnected from the
rest - with no pathways that would allow them to influence the output
- yet when the researcher disabled any one of them the chip lost its
ability to discriminate the tones. Furthermore, the final program did
not work reliably when it was loaded onto other FPGAs of the same
type."
Budikka
.
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